PCbuild/*.vcxproj* should be added to .hgeol to force them to CRLF.

A couple of reasons:

1) They're only used on Windows, where the default (terrible, but always available) editor doesn't understand LF

2) More importantly, the tcl, tk, and tix projects use labels in the NMakeCommandLine script, which can fail confusingly when that script has LF line endings (the error is "The system cannot find the batch label specified - build")

Thanks to Andres Guzman-ballen for bringing this to my attention again. I have also seen this on my Windows 8.1 Non-Debug buildbot, where I worked around it by turning on the hg 'eol' extension so that everything would be converted to CRLF on checkout.